The Internet is a global network of interconnected networks from "summary" of Data Communications and Networking by Behrouz A. Forouzan
The Internet can be visualized as a vast network that connects millions of computers worldwide. It is a global network of interconnected networks, each consisting of a collection of computers that can communicate with one another. These interconnected networks form a complex web of communication links that enable data to be transmitted across vast distances in a matter of seconds. At the heart of the Internet are routers, which are specialized computers that forward data packets from one network to another. These routers are connected to one another through high-speed communication links, forming the backbone of the Internet. Through this network of routers and communication links, data can travel from one end of the world to the other, passing through multiple networks along the way. Each network connected to the Internet is assigned a unique IP address, which serves as its identifier on the network. These IP addresses are used to route data packets to their intended destinations, ensuring that data reaches its final destination accurately and efficiently. By using a combination of IP addresses and routing protocols, the Internet is able to seamlessly connect millions of networks and billions of devices worldwide. The Internet is a decentralized network, meaning that there is no central authority controlling its operations. Instead, various organizations and institutions work together to maintain and regulate the Internet's infrastructure. This decentralized structure allows the Internet to be resilient and flexible, adapting to changes and challenges as they arise.- The Internet is a global network of interconnected networks that enables data to be transmitted across vast distances in a matter of seconds. Through a complex system of routers, communication links, and IP addresses, the Internet connects millions of networks and billions of devices worldwide, allowing for seamless communication and information exchange on a global scale.
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